The line parallel to the x-axis is given by:

Explanation

A line parallel to the x-axis is a horizontal line where the y-coordinate remains constant. This is represented by the equation y = c, where c is a constant value.Option A is incorrect because y=0 does not generalize the concept of a line parallel to the x-axis.Option B is incorrect because x=0 represents a vertical line parallel to the y-axis, not the x-axis.Option D is incorrect because x=c represents a vertical line, not a horizontal line parallel to the x-axis.